Great idea! This is tedious to work out, but I think I made a couple of improvements:

rsa ecde sghu bhg rvc (play this line twice)

hybtg xer erv hybtg iii hybtg xer erv tvr

rrr rvgres rrr rvg rrr rvgres ggg rgh

grs sxebbe cuuuhbgres grs sxebbe cbbbgvrsai

And a couple of additions:

rsa ece xdx szs

Play this one fast:

srghil;l xrtnio/o dvbj,. '''i (I couldn't find a high enough A)

And an attempt at the underworld theme, although this one was harder to pick out (and hard to type up to tempo).

rieudj rieudj b.v,to b.v,to tvfr tvxsf rybgjun tcdex

I think that the 'bv's following 'yhgr' might be 'vc' instead -- sounds closer to me. I gotta say, I really like this layout, even if it's slightly less than intuitive for me.

yup, vc not bv

whoa, soundslice is cool! would love to talk about integration :)

Well done! sxebbb; so many memories!

Very cool!